2011 ES350 with 51K - Rough idle while in R or D
05-06-18 | 11:12 AM
#46
Lead Lap
Joined: Jun 2014
Posts: 3,930
Likes: 1,074
From: MI
I took my 09 ES350 to the dealer right before 50,000 miles for a rough idle, the service writer said all ES350 do that, nothing wrong with it. A year later I replace all the Diamond Coils with Denso coils packs and the rough idle all but went away. I am thinking the Diamond coil packs was the issue >
So the bad idle went away right after you replaced the coils?
05-06-18 | 07:05 PM
#47
Driver School Candidate
Joined: May 2018
Posts: 2
Likes: 0
From: CO
I have a 2007 ES350, which has performed perfectly for 12 years. . . until today. It started vibrating and the "Check engine" light and "Check VSC" messages came on. I shut it down, and 3 hours later I took it to a friend with a diagnostic tool, but it ran perfectly--no warning lights. I left his garage, and "Check engine" and Check VSC" lights came back on, and it started running rough. I returned to his garage, he put the scope back on it, and it said "bad spark coil F." Perhaps that's the issue, no?
Anyone know which cylinder is "F"?
Anyone know which cylinder is "F"?
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Goldenbear (05-07-18)
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